Wheel



L. H. PERLMAN.

WHEEL.

APPLICATION FILED NOV-8.1919,

Patented Aug. 23, 1921.

York, in the county of New York andwState To all whomz't may concern:

UNITED sr'ArEs PATENT orrlcs.

LOUIS H. PEBLMAN, OF NEW YORK, N. Y., ASSIGNOB TO GENERAL MOTORS COBPb- BATION, CORPORATION 01! DELAWARE.

wnnnn.

Specification of Letters Patent. I Patented Aug. 23, 1921.

6 Original application filed June 24,1916, Serial No. 105,898. Divided and this application filed November 6 8,1919. Serial no. 836,596. 7

Be it known that I, LOUIS H. PERIlirAN, a citizen of the United States, residing at New of New York, have invented certain new and useful Improvements in'Wheels; and I do .hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the artrto which it appertains to make and use the same.

.. This invention relates to improvements in wheel structures and more particularly to the locking means for demountable-rims.

' The primary object in view is the im.- provement in the anchoring means for the rim lockin device of the general character seen s eci cally 1n my prior patent, No.

- With this and further objects in view, as will in part hereinafter .become apparent and in part be stated, theinvention comprises certain novel constructions, combinations and arrangements of parts as subsethe present invention.

quently 1 specified and claimed.-

In the accompanying drawing Figure 1 is a sectional elevation of a fragment of a wheelembodying the features of Fig. 2 is a fragmentary, lan View of the part, seen in Fig. 1," the emountable rim being omitted.

Fig. 3 181]. similar view thereof the sleeve and parts carried thereby removed.

Fig. 4 is a view similar to Fig. 1 of another embodiment of the'invention, the "do mountable rim being omitted and the felly beingbroken away.

Fig. 5 is'a view similar to parts seen in Fig. 4. p

Fig. 6 a fragmentary, inverted plan parts of of a section of the demountable rim showsleeve-being internally threaded so as to receive the external threads of the bolt 7 The sleeve 8, as heretofore constructed by me,. has been provided'with' various means for in the lock-receiving cap.

' lieferring to the drawing .by numerals, I 1 indicates the wood folly of a wheel such as the ,usual automobile wheel, on which felly is shrunk the telly band 'or fixed rim 2, having at its inner edge the supporting stopflan' 3. At appropriately spaced -in-, tervalsa lit the wheel body are arranged locking. devices for tensioning the demountvices being adapted to press the rim radially Fig. 26: the" .outward away from. the wheel body and at the same time, thrust'it over into supporting contact with the flange 3, this result being accomplished by the exercise of an incllned pressure against the inclined wall of the rim 4. This inclined wall is'preferabl supplled by the provision of a cap 5 for eac tion in F ig.v 1, and in plan in Fig. 6, and has a substantially cylindrical exterior body threaded through the rim 4 and terminating at 1ts lnner end in a laterally-extending locking device. This cap 5 is seen in secflange 19 having referably poly'sided edges as seen in Fig. 6, or facilitating engagement by an operating tool. The flange 19 serves as a stop agalnst the inner face of rim 4 when the cap 5 is threaded home through the rim. The cap 5 is formed with an internal tapering recess '18 positioned and adapted for receiving the tapered end .6 of the bolt 7, the cap being so located with respect to theaxis of the bolt that the inclined face of taper 6 strikes the inner part of the inclined wall formed by the recess 18 so that radial outward movement of bolt 7 effects a wedging action thrusting the rim 4 axially against the flange 3, the ressure on the rim 4 exerted by the bolt 7 being inclinedand tending bothv to push the r m .4 radially 7 is threaded radially through the felly 1 the supporting stop" and fixed rim 2 and as has heretofore been I practised by me ilthe bolt is preferably stabilized in its anc orage by means of the use of a sleeve such as is lndicated at 8,-the

reventing rotation so as toprevent .the oosening up of the parts. The devices and methods heretoforeemployed while very efficicnt and. usually relatively. inexpensive have been foundby me not-to be the easiest to construct a'sa matter of manufacture; The present invention, therefore, has been devised to assure the maximum ease and cheapness of construction, whileat the same time maintainlng maxlmum efiiciency.

In securing these results, I provide the long as the head 9 snugly fits the surrounding elements. To this end, the rim '2 is formed with a circular opening 10 eccentrically arranged with respect to the bore 11 in the felly 1 which receives the sleeve 8. The material ofthe fixed rim 2 about the edge of the opening 10 is beveled as at 12, and the edge of the circular head 9 is oppo; sitely beveled as at 13 to fit the bevel 12 so that the ircular head 9 may lie flush with theouter face of the fixed rim 2, while actually overlying certain portions of the material of that rim, whereby when the sleeve 8 is clamped in engagement with the rim-by means of a nut 14 threaded on to the inner end of the sleeve and acting against the inner face of the felly 1, the sleeve will be firmly clamped in such engagement with the wheel as will evenly and effectively distribute load stresses to and from the wheel body without undue strain on any part indeendent of other parts. A washer 15 of the ock type or any other appropriate type is interposed between the nut 14 and the inner face of the felly 1 to prevent the backing off of the nut. The bolt 7 is merely threaded through the sleeve 8 and when in its operative position is locked by a locking nut 16 threaded on to the inner portion of the bolt and into engagement with the inner end of sleeve 8.

It .is believed that the operation will be perfectly obvious, residing, so far 'as the present invention is concerned, in the retention of the sleeve 8 against accidental or other objectionable revolving in use.

When the parts are assembled as seenin Fig. 4, to remove the demountable rim 4, it

is only necessary to back off the bolt 7 in.

each instance for withdrawing the wedge 6 from engagement with the" inclined recess of the cap 5, and then to withdraw the rim 4 axially. This may be done manually and the rim may be restored by a conv'erse axial movement and when it is approximately in position, the several bolts 7 are threaded outward for causing the wedges 6 to enter the recesses of-caps 5 and toengage the inclined faces thereof at the inner portion'of the recesses for exertin on the rim and thus tl irusting the rim axially against its seat on flange. 3 and outward away rom the wheel for tensioning it in position for operation. The nuts 16 of bolts 7, of'course, are not tightened. until the an inclined pressure 7 bolts have assumed their final sition.

It is'obvious that the circular form of the bore 11 incident to the cylindrical form of sleeve 8, enables the bore 11 to be formed by any ordinary boring tool and does not require special fitting for such sleeves as are made other than cylindrical to prevent rotation. The advantage of 5 forming the opening 10 is somewhat similar, being incident to the method of stamping.

In Figs. 4 and 5 are seen structures identical with those above described except that the head 9' is not arranged eccentric to the bore of the sleeve 8, but in lieu thereof has portions cut away leaving straight portions 17, 17 andwith this form of construction the recess in the felly band 2 must be correspondingly formed. The other parts of the structure seen in Figs. 4 and 5 are-identical,

' and a demountable rim therefor,of an inter nally threaded sleeve extending through a portionof thewheel body, and having means of engagement therewith, resisting inward travel of the sleeve, and a nut threaded on to the inner portion of the sleeve, and contacting with a portion of the wheel body for preventing outward travel of the sleeve, a bolt. threaded into the sleeve and extending in position to engage and sustain the demountable rim on the wheel body, and a nut threaded on the inner portion of the bolt,

and disposed to be threaded into contact with 1 the first-mentioned nut.

2. The combination, with the telly and fixed rim of a wheel body, ofa demountable rim-lock-receiving cylindrical sleeve extending through the felly and fixed rim and having a head eccentric to the sleeve and disposed to be surrounded by the material of the fixed rim, the edge of the head bein beveled and the material of the fixed rim eing correspondingly beveled for enabling the outer face of said head to lie flush with the outer face of the fixed rim while material of the head overlies material of the rim, and means for preventing outward movement of the sleeve.

3. The combination with a demountable rim, of a cap threaded into the material of the rim from the inner face of the rim outward, the cap being formed with an in-' wardlyeopening lock-receiving recess. n

'4. The combination with a demountable operative porim, of :1 ca thneaded into engagement with In testimon whereof I afiix my sig nat ire the riull1 an haxing a flallllge adapted 30 enin presence 0 two witnesses. a' e't e inner ace of t e rim said ange ig'adapted to receive an operating tool, LOUIS PERLMAN' 5 the cap bein formed with a recess designed Witnesses: to-receive t e lock-receiving element of a E. M; FRUHLING, wheel body. EDGAR M. KITGHIN. 

